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NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) <br />DISCHARGE MONITORING REPORT (DMR) <br />PERMITTEE NAME/ADDRESS (include Facility Name/Location if Different) <br />NAME: Oxbow Mining LLC <br />ADDRESS: PO Box 535 <br /> Somerset, CO 81424-0535 <br />FACILITY: SANBORN CRK & ELK CRK MINES <br />LOCATION: 3737 HIGHWAY 133 <br /> SOMERSET, CO 81434 <br />ATTN: James T. Cooper, EVP <br />000000132 016-A <br />PERMIT NUMBER DISCHARGE NUMBER <br />MONITORING PERIOD <br />MM/DDIYYYY MM/DDIYYYY <br />FROM 09/01/2010 TO 09130/2010 <br />Fonn Approved <br />OMB No. 2040-0004 <br />DMR Mailing ZIP CODE: 81424-0535 <br />MINOR <br />GUNIS <br />SURFACE RUNOFF TO ELK CREEK <br />External Outfall <br />No Discharge <br />PARAMETER QUANTITY OR LOADING QUALITY OR CONCENTRATION EX. FREQUENCY <br />OF ANALYSIS STYPPEE <br /> VALUE VALUE UNITS VALUE VALUE VALUE UNITS <br />pH SAMPLE ,..... ».,.. .„„ ...... <br /> MEASUREMENT <br />0040010 PERMIT 6.5 9 SU <br />Effluent Gross REQUIREMENT MINIMUM MAXIMUM Monthly INSITU <br />Solids, total suspended SAMPLE .,.... <br /> MEASUREMENT <br />0053010 PERMIT ...... ....» .•..., ,..., <br />. 35 70 L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Solids, settleable SAMPLE <br /> MEASUREMENT <br />005451 0 PERMIT Req. Mon. Req. Mon. mL/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Iron, total (as Fe) SAMPLE <br /> MEASUREMENT <br />0104510 PERMIT ..,... '."" 3000 6000 ug/L <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly GRAB <br />Oil and grease SAMPLE <br /> MEASUREMENT <br />0358210 PERMIT »• •»'•' •» •»»• '10 mg/? <br />Effluent Gross REQUIREMENT INST MAX Contingent GRAB <br />Flow, in conduit or thru treatment plant SAMPLE <br /> MEASUREMENT <br />500501 0 PERMIT Req. Mon. Req. Mon. MgaUd '•»" "•»• •»••• <br />Effluent Gross REQUIREMENT 30DA AVG DAILY MX Monthly INSTAN <br />Solids, total dissolved SAMPLE <br />o <br />- <br />l <br /> MEASUREMENT 2-00 d <br />hn <br />e <br /> <br />0 <br /> <br />O <br /> <br />tiL <br />70295 1 0 PERMIT •""' """ """ """ Req. Mona Mon. <br />t - <br />g/L <br />Effluent Gross REQUIREMENT QRTR AVG Y MX <br />DA Quarterly GRAB <br />NAMEMTLEPRINCIPAL EXECUTIVE OFFICER wCe"'fyuivl<penaltyofl'wtb"'bi`a"n""mmid 11 hrriin°w pmp-.d der mydire,ion nr <br />p- maeeer <br />bm <br />m <br />d-gwd lpopeyg,mer.nd <br />1l <br />t <br />th <br />i <br />f <br />i <br />; <br />b <br />TELEPHONE <br />DATE <br /> <br />' <br /> <br /> <br />r i <br />, m <br />3 <br />eva <br />ua <br />e <br />e <br />on su <br />n <br />ormat <br />rted. Based on on my inquiry of We person or person w!w manage the <br />m <br />synem, or those persons du-,iy spomible for gathering the if-tion, dte insfomtatron subm;ttcd u, <br />to the bat of my kw <br />wledge and behcf, true. aaunte, and complete. f etn e.arc that there arc significan ??C <br />I ' <br />`O <br />J <br />7 <br />7 0 <br /> <br /> <br />, 0, ( u / b <br />r <br />VIC. penalnas fur sub-11ing false inf-lion, imiuding the posvbility of f e and impriso-1 for trio.' / <br /> <br />TYPED OR PRINTED „nud?a. IGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR <br />AUTHORIZED AGENT <br />APEA <br />NUMBER <br />N1WDD/YYYY <br />................. .er... ?......-....-.....,. .... ..... ....._s.avrw \^ aacrcuw au aatea.nmm?u onset <br />TSS & TOTAL IRON LIMITS WILL BE WAIVED, AND SETTLEABLE SOLIDS LMT APPLIED FOR -10YR,24 HR PRECIP EVENT;SETTLEABLE SOLIDS LIMITS MAY BE WAIVED FOR >10YR,24HR EVENT-SEE I.A.1, PP 4-5, <br /> AND I.A.2., P. 5 <br />FOR ROMNTS. TDS MONITORING-SEE PART VIA.2.G OF RATIONALE. 30 DAY AVG IS HIGHEST MONTHLY AVG DURING PERIOD RPTD. <br />EPA Form 3320-1 (Rev.01106) Previous editions may be used. Page 1